/*
 * Copyright 2022 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef skgpu_graphite_PaintOptionsPriv_DEFINED
#define skgpu_graphite_PaintOptionsPriv_DEFINED

#include "src/gpu/graphite/Precompile.h"

namespace skgpu::graphite {
class ShaderCodeDictionary;

/* * Class that exposes methods in PaintOptions that are only intended for use internal to Skia.
    This class is purely a privileged window into PaintOptions. It should never have additional
    data members or virtual methods. */
class PaintOptionsPriv {
public:
    int numCombinations() const
    {
        return fPaintOptions->numCombinations();
    }

    void buildCombinations(const KeyContext &keyContext, PipelineDataGatherer *gatherer, bool addPrimitiveBlender,
        Coverage coverage, const std::function<void(UniquePaintParamsID)> &processCombination) const
    {
        fPaintOptions->buildCombinations(keyContext, gatherer, addPrimitiveBlender, coverage, processCombination);
    }

private:
    friend class PaintOptions; // to construct/copy this type.

    explicit PaintOptionsPriv(PaintOptions *paintOptions) : fPaintOptions(paintOptions) {}

    PaintOptionsPriv &operator = (const PaintOptionsPriv &) = delete;

    // No taking addresses of this type.
    const PaintOptionsPriv *operator&() const;
    PaintOptionsPriv *operator&();

    PaintOptions *fPaintOptions;
};

inline PaintOptionsPriv PaintOptions::priv()
{
    return PaintOptionsPriv(this);
}

// NOLINTNEXTLINE(readability-const-return-type)
inline const PaintOptionsPriv PaintOptions::priv() const
{
    return PaintOptionsPriv(const_cast<PaintOptions *>(this));
}
} // namespace skgpu::graphite

#endif // skgpu_graphite_PaintOptionsPriv_DEFINED
